quxiankeyi

这是学习matlab的资料，还可以的，希望对大家有帮助。(This is a learning matlab information, but also hope to have everyone help.)

说明：  自己编的付里叶变换，对学习者有很大帮助　(own series of the Fourier transform, to be of great help learners)

一个matlab的将军模型，互联网上很难查询到，希望对matlab初学者有所帮助(a general Matlab model, the Internet is difficult to find. Matlab hope to help beginners)

第7章语音信号的减噪176 7.1自适应滤波器减噪176 7.1.1LMS算法基本原理176 7.1.2基本LMS自适应算法178 7.1.3LMS的自适应陷波器181 7.2谱减法减噪184 7.2.1基本谱减法184 7.2.2改进的谱减法187 7.3维纳滤波法减噪195 7.3.1维纳滤波的基本原理195 7.3.2维纳滤波减噪的具体步骤和函数WienerScalart96197 7.3.3维纳滤波的MATLAB例子199(Noise Chapter 7 of the speech signal noise reduction algorithm for adaptive filters 176 7.1 Fundamentals 7.1.2 Basic LMS adaptive algorithm 176 178 7.1.3LMS of 176 7.1.1LMS adaptive notch filter 181 7.2 184 7.2 spectral subtraction noise reduction 184 7.2.2 .1 basic spectral subtraction improved spectral subtraction method of noise reduction Wiener filter 187 195 7.3 Fundamentals 7.3.1 195 7.3.2 Wiener filtering Wiener filter noise of concrete steps and functions WienerScalart96197 7.3.3-dimensional MATLAB examples Carolina filter 199)

The program generates Gold Codes.

摘要 本文提出了一种新的基于极大似然法的椒盐噪声滤波算法。在传统BP 算法中引入 了极大似然估计，在训练样本时能够在考虑网络逼近行为的同时对噪声分布进行估计。而且 针对椒盐噪声模型构造了新的鲁棒误差函数，从而使算法本身的抗干扰性增强。实验结果表 明了该算法与传统BP 算法相比具有更好的滤波性能。(Abstract This paper presents a new maximum likelihood method based on impulse noise filter. In the traditional BP algorithm, the introduction of the maximum likelihood estimation, the training samples can also be considered acts of the network approach to estimate the noise distribution. Salt and pepper noise and model construction for a new robust error function, so that the enhanced anti-jamming algorithm itself. Experimental results show that the algorithm compared with the traditional BP algorithm has better filtering performance.)

说明：  最优化学习的Matlab程序:包括最速下降法,黄金分割法,曲线拟合等.(Matlab optimization learning process: including the steepest descent method, golden section method, such as curve fitting.)

8 band kp method calculate the valence band structure, using finite difference method

Jakes模型对衰弱信道进行仿真 在仿真时，先定义一个模型，再在主函数中调用这个模型，下面是主函数的程序(Jakes model debilitating channel simulation)

信道容量和编码。介绍了二进制对称信道和加性高斯白噪声信道。(Channel capacity and coding. Describes the binary symmetric channel and additive white Gaussian noise channel.)